| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1931 |
|
Astounding Stories, July 1931 | The Clayton Magazines, Inc. | MAGAZINE | 129 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1931 |
|
Astounding Stories, July 1931 | The Clayton Magazines, Inc. | MAGAZINE | 129 |